/*
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 * and open the template in the editor.
 */

package homework.demo04;

/**
 *
 * @author Administrator
 */
public class CheckID {
       public static void main(String[]args){
        String ID="45213119900923123x";
        boolean flag=true;
        if(ID.length()!=18){
            flag=false;
        }
        
       if(!(ID.startsWith("45")||ID.startsWith("62"))){               
           flag=false;                          
       }   
       String numstr="0123456789x";
       for(int i=0;i<ID.length();i++){
           char c=ID.charAt(i);
           int temp=numstr.indexOf(c);
           if(temp<0){
               flag=false;
               break;
           }
       }
       if(flag){
            System.out.println("是合法的身份证号");
       }
       else{
           System.out.println("不是合法的身份证号");
       }
       }
}
